equinox

a numeric vector of <code>years</code>

years

defines the Equinox sought. Can be <code>mar</code> (default) or
<code>sep</code>.

season

time zone for which equinox instant should be returned (default:
<code>"UTC"</code>)

a flag indicating whether the returned date should be in
dynamical time (default: <code>FALSE</code>)

want_dt

Determine the date/time of March and September Equinoxes.
This implements Jean Meeus' algorithm (Astronomical Algorithms
1st Ed, 1991, Chapter 26).

internal

Implements common date calculations relevant for specifying
the economic nature of financial market contracts that are typically defined
by International Swap Dealer Association (ISDA, <http://www2.isda.org>) legal
documentation. This includes methods to check whether dates are business
days in certain locales, functions to adjust and shift dates and time length
(or day counter) calculations.

equinox: March and September equinox

Description

Usage

Arguments

Value